Considerations for the use of functional principal components analysis in sports biomechanics: examples from on-water rowing     

John Warmenhoven  Stephen Cobley  Conny Draper  Andrew Harrison  Norma Bargary  Richard Smith 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(3):317-341

The proliferation of new biomechanical technology in laboratory and field settings facilitates the capture of data-sets consisting of complex time-series. An understanding of the appropriate statistical approaches for analysing and interpreting these data-sets is required and the functional data analysis (FDA) family of statistical techniques has emerged in the biomechanical literature. Given the use of FDA is currently in its infancy with biomechanical data, this paper will form the first of a two part series aiming to address practical issues surrounding the application of FDA techniques in biomechanics. This work focuses on functional principal components analysis (fPCA), which is explored using existing literature and sample data from an on-water rowing database. In particular methodological considerations for the implementation of fPCA such as temporal normalisation of data, removal of unwanted forms of variation in a data-set and documented methods for preserving the original temporal properties within a set of curves are explored in detail as a part of this review. Limitations and strengths of the technique are outlined and recommendations are provided to encourage the appropriate use of fPCA within the field of applied sports biomechanics.  相似文献   

Sport and civil society in the Nordic region     

Richard Giulianotti  Hannu Itkonen  Arto Nevala 《Sport in Society》2019,22(4):540-554

Abstract

This paper examines the key elements within the relationships of sport and civil society in Scandinavia. The analysis combines themes and developments in Nordic sport and civil society, such as the role of the welfare state and the impacts of neoliberalism, with consideration of specific national experiences, especially in Finland. The discussion has four main parts. First, we set out the principal features of the ‘Nordic model’ of society, and how it shapes sport and civil society relations. Second, we advance a Finnish case study, examining the historical connections of three sectors to the national sport culture. Third, we consider how, in recent decades, the Nordic model has encountered and sought to respond to neoliberalism and globalization processes. Finally, we explore how Nordic societies have sought to influence globalization processes and ‘global civil society’ through sport, specifically through taking lead roles within the transnational ‘sport for development and peace’ sector.  相似文献   

Research and theory motivation in the workplace: Implications for training     

William E. Schoonmaker 《Performance Improvement》1984,23(2):28-30

  相似文献   

School-psychological providers: A national survey of state departments of education     

Joy Patricia Burke  Caroline E. Haworth  John C. Brantley 《Psychology in the schools》1983,20(2):191-196

To identify professional groups that are providing psychological services in the schools, the present national survey of state departments of education was conducted. Fifty-nine percent of states currently mandate services of school psychologists by law, and a variety of allied professional groups were identified as also providing psychological services in the schools. Specific information about provider groups and service mandates is reported. Recommendations relevant to the provision of quality school-psychological services and utilization of multiple providers are given.  相似文献   

Orlansky,M. D., & Heward,W. L. Voices: Interviews with Handicapped People. Columbus,OH: Charles E. Merrill, 1981. 263 pp., $9.95 (paper)     

William E. Roweton 《Psychology in the schools》1983,20(3):401-402

  相似文献   

The potential impact of brain research on instructional technology. New technologies and instruction     

Richard Scudder  Frank Clement 《Performance Improvement》1982,21(3):30-33

  相似文献   

The learning strategy technique of task analysis     

Kenneth E. Carlisle 《Performance Improvement》1982,21(10):9-41

  相似文献   

A comparison of role concepts between public and parochial school teachers     

Norman J. Presse  Robert E. Bills 《Psychology in the schools》1981,18(1):107-111

This study seeks to determine if the same five bipolar factors that appear for the ideal role concepts of public school teachers also appear for parochial school teachers. Subjects included 185 teachers from a Catholic diocese. The data were factor analyzed by means of a principal axis analysis with varimax rotation. An analysis of variance was used to compare the factor analyses. The results indicated that parochial and public school teachers have similar factor structures. When comparing factor scores of the two groups, there were significant differences on several factors, indicating that parochial school teachers adopt a more facilitating role than do public school teachers.  相似文献   

A multidimensional motivation instrument     

Margaret E. Uguroglu  Diane P. Schiller  Herbert J. Walberg 《Psychology in the schools》1981,18(3):279-285

Individual empirical studies of motivation show little divergent validity of various factors and call for better measures, especially multidimensional instruments. The same conclusions were reached from a meta analysis of 40 motivation studies by Uguroglu and Walberg (1979). After a study of approximately 50 instruments that measured motivation constructs of social, emotional, and physical self-concept; locus of control; and achievement motivation, among others, a 23-anchored-item questionnaire using a five-point scale was developed that included these factors. The instrument was administered in May of the first and second year to 115 students in grades three through eight. The purpose of the research was to operationalize and field test a motivation instrument using multidimensional measures; also to consider whether any change would occur in the correlation of a multidimensional instrument to various achievement measures over unidimensional ones. Results of the study show the correlations of motivation to academic achievement, test-retest reliability, and the predictive validity of a multidimensional instrument.  相似文献   

Technology and training: The shape of tomorrow's seminar     

Robert E. Bergman 《Performance Improvement》1981,20(9):17-20

  相似文献